You are right. The zero-day exploits might be worth roughly a million each, but not the family tree of native GPU's, ANE, CPU instruction sets and microarchitecture on which they would be based.

My apology for writing unclearly, English is not my native language. I'm surprised it is yours.

Saving on energy, programming effort and purchase cost of a supercomputer in case of M4 instruction sets and microarchitecture knowledge would also save millions.

I doubt that, largely because nobody is really using Apple silicon for supercomputing efforts.